NGC/IC Project Restoration Effort

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NGC6605

 

Basic Information


Location and Magnitude


Right Ascension: 18:16:24.0
Declination: -15:0:0
Constellation: SER
Visual Magnitude: 6.0

Historic Information


Discoverer: Herschel J.
Year of discovery: 1826
Discovery aperture: 18.3

Observational


Summary description: Cl, lRi, lC, st 10…12
Sub-type: OCL

Corwin's Notes

===== NGC 6605. There appears to be a +2 minute error in JH's RA, as a cluster matching his description "Loose straggling cluster; stars 10...12m" is at his declination, but 2 minutes of time preceding. There are about 30 stars of the correct magnitude scattered over a 15 arcmin by 15 arcmin area, while there are none brighter than 14th or 15th magnitude at the nominal place (which is laced with a complex of absorption bands). The RA in the sweep is given to a full second of time and is marked uncertain, but JH published it with his usual precision of 0.1 seconds and no indication of the uncertainty. In any event, an RA error is not inexplicable. Coincidentally, the RA is one minute of time off in the Alter et al. 1970 catalogue of star clusters where this is OCl-47.

Steve's Notes

===== NGC 6605 18" (8/27/05): at 73x, this is a very undistinguished group of 80-100 stars scattered over 20' and appears to be just a typical Milky Way field. Includes a mag 7.8 star (HD 167498) on the NW side and just NW of this star are a number of faint stars. Otherwise, there is a noticeable lack of any rich spots or concentration and the central region is noticeably lacking in stars. The only reason I can see Herschel may have been recorded this object is because it's somewhat detached in a low power field. Listed as nonexistent in the RNGC.